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| author | Pieter Jansen van Vuuren | 2018-03-26 10:16:38 +0200 |
|---|---|---|
| committer | David S. Miller | 2018-03-26 19:01:09 +0200 |
| commit | 71ea5343a01cad36d7c44bea07a79dd96049e6c0 (patch) | |
| tree | 2cb0f421ad2fbba42030a44d4b2c67cf63d47b0c /drivers/net/ethernet/netronome | |
| parent | nfp: flower: refactor shared ip header in match offload (diff) | |
| download | kernel-qcow2-linux-71ea5343a01cad36d7c44bea07a79dd96049e6c0.tar.gz kernel-qcow2-linux-71ea5343a01cad36d7c44bea07a79dd96049e6c0.tar.xz kernel-qcow2-linux-71ea5343a01cad36d7c44bea07a79dd96049e6c0.zip | |
nfp: flower: implement ip fragmentation match offload
Implement ip fragmentation match offloading for both IPv4 and IPv6. Allows
offloading frag, nofrag, first and nofirstfrag classification.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/match.c | 12 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/offload.c | 15 |
3 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h index db32f129aded..3f46d836d1b8 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h @@ -61,6 +61,9 @@ #define NFP_FLOWER_MASK_MPLS_BOS BIT(8) #define NFP_FLOWER_MASK_MPLS_Q BIT(0) +#define NFP_FL_IP_FRAG_FIRST BIT(7) +#define NFP_FL_IP_FRAGMENTED BIT(6) + /* Compressed HW representation of TCP Flags */ #define NFP_FL_TCP_FLAG_URG BIT(4) #define NFP_FL_TCP_FLAG_PSH BIT(3) diff --git a/drivers/net/ethernet/netronome/nfp/flower/match.c b/drivers/net/ethernet/netronome/nfp/flower/match.c index 26110670ba13..91935405f586 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/match.c +++ b/drivers/net/ethernet/netronome/nfp/flower/match.c @@ -190,6 +190,18 @@ nfp_flower_compile_ip_ext(struct nfp_flower_ip_ext *frame, if (tcp_flags & TCPHDR_URG) frame->flags |= NFP_FL_TCP_FLAG_URG; } + + if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { + struct flow_dissector_key_control *key; + + key = skb_flow_dissector_target(flow->dissector, + FLOW_DISSECTOR_KEY_CONTROL, + target); + if (key->flags & FLOW_DIS_IS_FRAGMENT) + frame->flags |= NFP_FL_IP_FRAGMENTED; + if (key->flags & FLOW_DIS_FIRST_FRAG) + frame->flags |= NFP_FL_IP_FRAG_FIRST; + } } static void diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c index f3586c519805..114d2ab02a38 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/offload.c +++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c @@ -48,6 +48,10 @@ (TCPHDR_FIN | TCPHDR_SYN | TCPHDR_RST | \ TCPHDR_PSH | TCPHDR_URG) +#define NFP_FLOWER_SUPPORTED_CTLFLAGS \ + (FLOW_DIS_IS_FRAGMENT | \ + FLOW_DIS_FIRST_FRAG) + #define NFP_FLOWER_WHITELIST_DISSECTOR \ (BIT(FLOW_DISSECTOR_KEY_CONTROL) | \ BIT(FLOW_DISSECTOR_KEY_BASIC) | \ @@ -322,6 +326,17 @@ nfp_flower_calculate_key_layers(struct nfp_app *app, } } + if (dissector_uses_key(flow->dissector, FLOW_DISSECTOR_KEY_CONTROL)) { + struct flow_dissector_key_control *key_ctl; + + key_ctl = skb_flow_dissector_target(flow->dissector, + FLOW_DISSECTOR_KEY_CONTROL, + flow->key); + + if (key_ctl->flags & ~NFP_FLOWER_SUPPORTED_CTLFLAGS) + return -EOPNOTSUPP; + } + ret_key_ls->key_layer = key_layer; ret_key_ls->key_layer_two = key_layer_two; ret_key_ls->key_size = key_size; |